Saturday, Jul 24, 2010 at 18:10
Hi Greg
In really doesn't work that way in practical track driving - the presumption is that you can get an accurate map.
You can get better maps than some , but they are always out of date by the time they are printed.
If lost or cross country exploring then map background info is of more use though.
Usually map errors are small for popular routes like Canning, except around complex campsites with multiple short access routes - quite different from road side
rest area stops.
But these maps leave in amd leave out by design much important information, like no longer showing bypasses etc (a real issue).
By plotting a track using all available data close to departure time you will always be more accurate.
Then all you need to do is follow the track without distraction and this is the Garmin key that Ozi just cannot do , and the more complex the track the more the track following logic shines by delivering track up
views with time to destination estimates etc etc , Ozi is basically limited to a course straight line readout to next waypoint - tough if there are 50 turns in between.
Much of the time you can't see a 100m into the scrub or over the next dune and knowing you are on the right track is vital , and this is where Ozi etc fail.
Some of it is even by design in order to control the tracks driven on (much to the dissapointment of at least 2 groups we came across -whose stuff didn't show wet weather bypasses- and it was wet).
Today I can show a track plot made pre-trip , followed by the actual route driven which show re-markable consistency.
There is simply no published map that can do this .
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